package eu.eudat.model.builder.tenantconfig;

import eu.eudat.authorization.AuthorizationFlags;
import eu.eudat.commons.types.tenant.TenantConfigEntity;
import eu.eudat.convention.ConventionService;
import eu.eudat.model.builder.BaseBuilder;
import eu.eudat.model.tenantconfig.TenantConfig;
import gr.cite.tools.data.builder.BuilderFactory;
import gr.cite.tools.exception.MyApplicationException;
import gr.cite.tools.fieldset.FieldSet;
import gr.cite.tools.logging.DataLogEntry;
import gr.cite.tools.logging.LoggerService;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.beans.factory.config.ConfigurableBeanFactory;
import org.springframework.context.annotation.Scope;
import org.springframework.stereotype.Component;

import java.util.*;

@Component
@Scope(value = ConfigurableBeanFactory.SCOPE_PROTOTYPE)
public class TenantConfigBuilder extends BaseBuilder<TenantConfig, TenantConfigEntity> {

    private final BuilderFactory builderFactory;
    private EnumSet<AuthorizationFlags> authorize = EnumSet.of(AuthorizationFlags.None);

    @Autowired
    public TenantConfigBuilder(
            ConventionService conventionService, BuilderFactory builderFactory) {
        super(conventionService, new LoggerService(LoggerFactory.getLogger(TenantConfigBuilder.class)));
        this.builderFactory = builderFactory;
    }

    public TenantConfigBuilder authorize(EnumSet<AuthorizationFlags> values) {
        this.authorize = values;
        return this;
    }

    @Override
    public List<TenantConfig> build(FieldSet fields, List<TenantConfigEntity> data) throws MyApplicationException {
        this.logger.debug("building for {} items requesting {} fields", Optional.ofNullable(data).map(List::size).orElse(0), Optional.ofNullable(fields).map(FieldSet::getFields).map(Set::size).orElse(0));
        this.logger.trace(new DataLogEntry("requested fields", fields));
        if (fields == null || data == null || fields.isEmpty())
            return new ArrayList<>();

        FieldSet depositFields = fields.extractPrefixed(this.asPrefix(TenantConfig._deposit));
        FieldSet fileFields = fields.extractPrefixed(this.asPrefix(TenantConfig._fileTransformers));

        List<TenantConfig> models = new ArrayList<>();
        for (TenantConfigEntity d : data) {
            TenantConfig m = new TenantConfig();
            if (!depositFields.isEmpty() && d.getDeposit() != null) m.setDeposit(this.builderFactory.builder(TenantDepositConfigBuilder.class).authorize(this.authorize).build(depositFields, d.getDeposit()));
            if (!fileFields.isEmpty() && d.getFileTransformers() != null) m.setFileTransformers(this.builderFactory.builder(TenantFileTransformersBuilder.class).authorize(this.authorize).build(fileFields, d.getFileTransformers()));
            models.add(m);
        }
        this.logger.debug("build {} items", Optional.of(models).map(List::size).orElse(0));
        return models;
    }
}